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 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
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 * file and include the License file at packager/legal/LICENSE.txt.
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 * GPL Classpath Exception:
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 * file that accompanied this code.
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 * If applicable, add the following below the License Header, with the fields
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 */

package com.sun.mail.imap;

import javax.mail.*;
import javax.mail.internet.*;
import com.sun.mail.util.*;
import com.sun.mail.iap.*;
import com.sun.mail.imap.protocol.*;

/**
 * The default IMAP folder (root of the naming hierarchy).
 * 
 * @author John Mani
 */

public class DefaultFolder extends IMAPFolder {

	protected DefaultFolder(IMAPStore store) {
		super("", UNKNOWN_SEPARATOR, store, null);
		exists = true; // of course
		type = HOLDS_FOLDERS; // obviously
	}

	public synchronized String getName() {
		return fullName;
	}

	public Folder getParent() {
		return null;
	}

	public synchronized Folder[] list(final String pattern) throws MessagingException {
		ListInfo[] li = null;

		li = (ListInfo[]) doCommand(new ProtocolCommand() {
			public Object doCommand(IMAPProtocol p) throws ProtocolException {
				return p.list("", pattern);
			}
		});

		if (li == null)
			return new Folder[0];

		IMAPFolder[] folders = new IMAPFolder[li.length];
		for (int i = 0; i < folders.length; i++)
			folders[i] = ((IMAPStore) store).newIMAPFolder(li[i]);
		return folders;
	}

	public synchronized Folder[] listSubscribed(final String pattern) throws MessagingException {
		ListInfo[] li = null;

		li = (ListInfo[]) doCommand(new ProtocolCommand() {
			public Object doCommand(IMAPProtocol p) throws ProtocolException {
				return p.lsub("", pattern);
			}
		});

		if (li == null)
			return new Folder[0];

		IMAPFolder[] folders = new IMAPFolder[li.length];
		for (int i = 0; i < folders.length; i++)
			folders[i] = ((IMAPStore) store).newIMAPFolder(li[i]);
		return folders;
	}

	public boolean hasNewMessages() throws MessagingException {
		// Not applicable on DefaultFolder
		return false;
	}

	public Folder getFolder(String name) throws MessagingException {
		return ((IMAPStore) store).newIMAPFolder(name, UNKNOWN_SEPARATOR);
	}

	public boolean delete(boolean recurse) throws MessagingException {
		// Not applicable on DefaultFolder
		throw new MethodNotSupportedException("Cannot delete Default Folder");
	}

	public boolean renameTo(Folder f) throws MessagingException {
		// Not applicable on DefaultFolder
		throw new MethodNotSupportedException("Cannot rename Default Folder");
	}

	public void appendMessages(Message[] msgs) throws MessagingException {
		// Not applicable on DefaultFolder
		throw new MethodNotSupportedException("Cannot append to Default Folder");
	}

	public Message[] expunge() throws MessagingException {
		// Not applicable on DefaultFolder
		throw new MethodNotSupportedException("Cannot expunge Default Folder");
	}
}
